Migrates battery_status from content/renderer/ to WebKit/platform/

third_party/WebKit/Source/modules/modules.gypi

 {
   'includes': [
     '../core/core_generated.gypi',
     'modules_generated.gypi',
   ],
   'variables': {
     # Experimental hooks for embedder to provide extra IDL and source files.
     #
     # Note: this is not a supported API. If you rely on this, you will be broken
     # from time to time as the code generator changes in backward incompatible
@@ skipping 774 matching lines @@
       'background_sync/SyncError.cpp',
       'background_sync/SyncError.h',
       'background_sync/SyncEvent.cpp',
       'background_sync/SyncEvent.h',
       'background_sync/SyncManager.cpp',
       'background_sync/SyncManager.h',
       'battery/BatteryDispatcher.cpp',
       'battery/BatteryDispatcher.h',
       'battery/BatteryManager.cpp',
       'battery/BatteryManager.h',
-      'battery/BatteryStatus.cpp',
-      'battery/BatteryStatus.h',
       'battery/NavigatorBattery.cpp',
       'battery/NavigatorBattery.h',
       'beacon/NavigatorBeacon.cpp',
       'beacon/NavigatorBeacon.h',
       'bluetooth/Bluetooth.h',
       'bluetooth/Bluetooth.cpp',
       'bluetooth/BluetoothAdvertisingData.cpp',
       'bluetooth/BluetoothAdvertisingData.h',
       'bluetooth/BluetoothCharacteristicProperties.cpp',
       'bluetooth/BluetoothCharacteristicProperties.h',
@@ skipping 1124 matching lines @@
       'webaudio/AudioBasicProcessorHandlerTest.cpp',
       'webaudio/ConvolverNodeTest.cpp',
       'webaudio/DynamicsCompressorNodeTest.cpp',
       'webaudio/ScriptProcessorNodeTest.cpp',
       'webaudio/StereoPannerNodeTest.cpp',
       'websockets/DOMWebSocketTest.cpp',
       'websockets/DocumentWebSocketChannelTest.cpp',
     ],
   },
 }